CENTRAL VALLEY, Calif. (FOX26) — A massive gang enforcement operation across the San Joaquin Valley resulted in dozens of arrests and the seizure of firearms, drugs, and cash.

The Fresno County Sheriff’s Office says on May 28, local, state, and federal law enforcement agencies served 43 search warrants as part of a two-month undercover investigation dubbed “Operation Hands Down.”

The operation targeted alleged Mexican Mafia and Sureño gang members linked to crimes including homicides, firearms trafficking, narcotics sales, robberies, assaults, and sex offenses involving minors.

The operation led to the arrest of 69 suspects, the seizure of 73 firearms, and the confiscation of significant amounts of narcotics, including 55 pounds of methamphetamine, three pounds of cocaine, and fentanyl powder.

Investigators also seized nearly $156,000 in cash believed to be tied to gang activity.

The Fresno County Sheriff’s Office and the Multi-Agency Gang Enforcement Consortium (MAGEC) said more than 500 law enforcement personnel participated in the operation, including SWAT teams, K-9 units, air support crews, and correctional officers, and the following agencies:

California Department of Justice (DOJ) Special Operations Unit (SOU) Federal Bureau of Investigation (FBI) Fresno County District Attorney’s Office Homeland Security Investigations (HSI) California Highway Patrol (CHP) California Department of Corrections and Rehabilitation (CDCR) California Department of Fish and Wildlife U.S. Marshals Service Fresno Police Department Clovis Police Department Sanger Police Department Kingsburg Police Department Selma Police Department Reedley Police Department Coalinga Police Department Visalia Police Department Tulare County Sheriff’s Regional Gun Violence Enforcement Team (TARGET) Kings County Sheriff’s Major Crimes Task Force (MCTF) Madera County Sheriff’s Office Madera Police Department Merced County Sheriff’s Gang and Narcotic Enforcement Team (MAGNET) Comment with Bubbles

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Officials say the arrests are expected to have an immediate impact on reducing gang-related violence throughout the Central Valley.